View Single Post
  #12   Spotlight this post!  
Unread 17-05-2011, 22:08
RyanCahoon's Avatar
RyanCahoon RyanCahoon is offline
Disassembling my prior presumptions
FRC #0766 (M-A Bears)
Team Role: Engineer
 
Join Date: Dec 2007
Rookie Year: 2007
Location: Mountain View
Posts: 689
RyanCahoon has a reputation beyond reputeRyanCahoon has a reputation beyond reputeRyanCahoon has a reputation beyond reputeRyanCahoon has a reputation beyond reputeRyanCahoon has a reputation beyond reputeRyanCahoon has a reputation beyond reputeRyanCahoon has a reputation beyond reputeRyanCahoon has a reputation beyond reputeRyanCahoon has a reputation beyond reputeRyanCahoon has a reputation beyond reputeRyanCahoon has a reputation beyond repute
Re: PWM speed controllers cheaper than Victors?

Quote:
Originally Posted by ProjectZero View Post
Hi guys,

This summer I'm working on an independent project to build a hexapod robot.
Quote:
Originally Posted by ProjectZero View Post
I tested today and even when stalled, the motors don't seem to pull more than 0.5 amps, and the typical no/minimal load current is 40 mA.
Just out of curiosity, what design are you using? Most table-top hexapods I've seen use RC servo motors, which shouldn't need external speed controllers, and you get position control for free (unless part of the project is writing the control loops yourself). Larger ones (e.g. able to carry humans around), I imagine, use discrete speed controllers, but those motors are going to pull more 0.5A...

--Ryan
__________________
FRC 2046, 2007-2008, Student member
FRC 1708, 2009-2012, College mentor; 2013-2014, Mentor
FRC 766, 2015-, Mentor